PJ.MIAOLAI M7 bluetooth 5.0 6J1 Vacuum Tube Amplifier Preamplifier Preamp

Features Vacuum tube preamp with bluetooth Convenient to improve your sound qualityAudio signal input can be computer CD phone and lossless playerThree kinds of audio input bluetooth5 0 RCA AUX 3 5mm stereo inputEasily switching between different sound sources with its audio input selectionAudio output can be connected to digital amplifiers and active multimedia audio devicesTreblebass adjustment Sound is warm and broad No background noiseGold plated for input and output terminals 6J1 valve tube Mini size suitable for desktopThe bluetooth decoding part adopts the latest US ESS9023 top level decoding core ES9023 is a 24 bit stereo audio digital to analog conversion chip DAC of ESS It adopts the industry leading SABRE digital to analog conversion technology This chipset has the best sound quality and high performance The price performance ratio makes it an ideal choice for digital to analog conversion The ES9023 uses patented Hyperstream architecture and time domain jitter cancellation technology to enable jitter free recording quality with a dynamic range of 112dBM7 bluetooth module is BTM625 bluetooth audio module adopt CSRA64215 chip support A2DP AVRCP HFP TWS AAC I2S etc adopt 4M SPI FLASH memory chip An external high gain removable antenna really makes lossless transmission of stable signals The M7 uses two high quality relays and a high precision custom crystal It has boot protection and protects your audio equipment from any damageAudio inpu